Hamza Sulayman Abdullahi

TL;DR: In this article, a multi-cell tubal structure with randomized cell sizes was proposed to enhance the energy absorption of the conventional square tubes by utilizing the random nature of Voronoi tessellations.

TL;DR: In this article, the interpolation functions of the field variable function (displacement) are integrated explicitly once and for all when geometric transformation function is linear, to give the constant universal matrices.

TL;DR: In this paper, a mesoscopic modeling approach for constructing a geometric model that captures these characteristics and can be used to predict its elastic properties is presented, where a new method for finding the number of seeds based on the cell diameter distribution and an algorithm for computing and assigning the irregular cell wall thickness based on reverse bubble growth.

TL;DR: The two-stage discrete and continuous optimization approach has demonstrated that it not only provides a systematic approach to searching optimal structure but also creates a series of novel multi-cell topological configurations with enhanced crashworthiness.

TL;DR: In this article, a new closed-form formulation with universal matrices strongly recommends that Weighted Richardson Extrapolation (WRE) with robust and hourglass controlled one-point quadrature can absolutely replace the conventional Gauss Quadrature in terms of efficiency, accuracy, and speed to find element stiffness matrices of quadrilateral and hexahedral elements.